維基辭典YuePhrase
Original phonetic: /t͡sʰɵn⁵⁵ waːn²¹ wɔːŋ¹³ fʊk̚²/
to move in circles; to repeat in cycles
Examples
實踐、認識、再實踐、再認識，這種形式，循環往復以至無窮，而實踐和認識之每一循環的內容，都比較地進到了高一級的程度。
This form repeats itself in endless cycles, and with each cycle the content of practice and knowledge rises to a higher level.